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47. LOUDSPEAKER .......................................................................................................... 18
48. POWER PACK ............................................................................................................ 19
49. FIXTURE FOR CARRYING STRAP/HANDLE ................................................................ 19
50. CASE FIXING SCREW................................................................................................. 19
51. PLATE SHOWING RECORDING AND PLAYBACK EQUALIZATION. ............................. 19
2.1. POWER SUPPLY .......................................................................................................... 20
DANGER OF REVERSED POLARIZATION ........................................................................ 20
MEASURING BATTERY CONDITION AND POWER SUPPLY VOLTAGE ............................ 20
BATTERY RESERVE..................................................................................................... 20
VOLT / CELL ................................................................................................................. 21
MEASURING THE MOTOR CURRENT .............................................................................. 21
"SPEED & POWER" INDICATOR ....................................................................................... 21
EXTERNAL POWER SUPPLY .......................................................................................... 21
3.0 OPERATION .................................................................................................................. 22
3.2 TAPE SPEED AND STANDARD SELECTION ............................................................... 22
2.3 LOADING A TAPE ON THE RECORDER...................................................................... 22
RECORDING .................................................................................................................... 23
RECORDING WITH MICROPHONES................................................................................. 23
RECORDING A LINE SIGNAL............................................................................................ 23
FAST FORWARD / REWIND............................................................................................. 23
PLAYING BACK A RECORDED TAPE ............................................................................... 24
WORKING WITH HEADPHONES....................................................................................... 24
2.8 PRECAUTIONS ........................................................................................................... 24
4.1. DIRECT AND TAPE CHAINS .......................................................................................... 25
GENERAL......................................................................................................................... 25
AUDIO INPUTS ................................................................................................................. 25
MANUAL LEVEL CONTROL .............................................................................................. 25
LIMITER ........................................................................................................................... 25
AUTOMATIC LEVEL CONTROL (ALC) ............................................................................... 26
MEASUREMENT OF SIGNAL LEVEL................................................................................. 26
5.0 PILOT ............................................................................................................................ 27
INTRODUCTION ............................................................................................................... 27
RECORDING A PILOT SIGNAL. ........................................................................................ 27
RECORDING THE INTERNAL CRYSTAL........................................................................... 27
RECORDING AN EXTERNAL PILOT SIGNAL..................................................................... 27
SYNCHRONIZING A RECORDED TAPE. ........................................................................... 28
FREQUENCY METER (OPTIONAL ACCESSORY QFM) ..................................................... 28
QUARTZ CRYSTAL PILOT GENERATOR (OPTIONAL ACCESSORY QGX-3) ..................... 28
PILOT INDICATOR............................................................................................................ 28
INTERNAL SYNCHRONIZER (OPTIONAL ACCESSORY QSLI) .......................................... 29
SPEED VARIER QSV-2 ..................................................................................................... 29
USE OF SPEED VARIER WHILST FILMING ON PLAYBACK .............................................. 30
RECORDING OF FACSIMILE AND SIMILAR SIGNALS ....................................................... 30
PILOT PLAYBACK MADE BY NAGRA 4.2 L FITTED WITH QSLI SYNCHRONIZER............. 30
PILOT CONNECTORS ...................................................................................................... 31
6.0 BASIC THEORY ............................................................................................................. 32
NOISE RATIO, DECIBELS ................................................................................................. 32
COMPRESSION OF THE DYNAMIC RANGE ..................................................................... 32
WHEN SHOULD COMPRESSION BE DONE?.................................................................... 33
5.3. INTERFERENCE ........................................................................................................ 34
ELECTROSTATIC INDUCTION.......................................................................................... 34
ACTION TO BE TAKEN AGAINST ELECTROSTATIC INDUCTION ..................................... 34
MAGNETIC INDUCTION.................................................................................................... 35
CABLE PREAMPLIFIERS .................................................................................................. 35
5.4. VOLTAGE OR CURRENT FEED ................................................................................. 35
FILTERING PREAMPLIFIERS ............................................................................................ 35
MAGNETIC HEADS ........................................................................................................... 36
ADJUSTEMENT OF HEAD AZIMUTH ................................................................................ 36
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